/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:27:23,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:27:23,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:27:23,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:27:23,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:27:23,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:27:23,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:27:23,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:27:23,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:27:23,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:27:23,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:27:23,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:27:23,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:27:23,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:27:23,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:27:23,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:27:23,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:27:23,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:27:23,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:27:23,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:27:23,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:27:23,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:27:23,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:27:23,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:27:23,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:27:23,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:27:23,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:27:23,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:27:23,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:27:23,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:27:23,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:27:23,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:27:23,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:27:23,310 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:27:23,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:27:23,310 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:27:23,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:27:23,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:27:23,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:27:23,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:27:23,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:27:23,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:27:23,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:27:23,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:27:23,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:27:23,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:27:23,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:27:23,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:27:23,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:27:23,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:27:23,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:27:23,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:27:23,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:27:23,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:27:23,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:27:23,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:27:23,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:27:23,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:27:23,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:27:23,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:27:23,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:27:23,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:27:23,611 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:27:23,611 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:27:23,612 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label20.c [2020-07-07 11:27:23,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/530690f2e/f0d3421fed854a93a0b7b807cc234903/FLAGe0a830167 [2020-07-07 11:27:24,202 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:27:24,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label20.c [2020-07-07 11:27:24,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/530690f2e/f0d3421fed854a93a0b7b807cc234903/FLAGe0a830167 [2020-07-07 11:27:24,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/530690f2e/f0d3421fed854a93a0b7b807cc234903 [2020-07-07 11:27:24,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:27:24,520 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:27:24,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:27:24,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:27:24,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:27:24,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:27:24" (1/1) ... [2020-07-07 11:27:24,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106af91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:24, skipping insertion in model container [2020-07-07 11:27:24,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:27:24" (1/1) ... [2020-07-07 11:27:24,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:27:24,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:27:25,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:27:25,062 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:27:25,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:27:25,207 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:27:25,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25 WrapperNode [2020-07-07 11:27:25,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:27:25,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:27:25,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:27:25,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:27:25,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25" (1/1) ... [2020-07-07 11:27:25,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25" (1/1) ... [2020-07-07 11:27:25,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25" (1/1) ... [2020-07-07 11:27:25,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25" (1/1) ... [2020-07-07 11:27:25,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25" (1/1) ... [2020-07-07 11:27:25,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25" (1/1) ... [2020-07-07 11:27:25,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25" (1/1) ... [2020-07-07 11:27:25,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:27:25,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:27:25,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:27:25,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:27:25,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:27:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:27:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:27:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-07 11:27:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:27:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-07 11:27:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:27:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:27:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:27:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:27:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:27:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:27:26,532 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:27:26,532 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:27:26,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:27:26 BoogieIcfgContainer [2020-07-07 11:27:26,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:27:26,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:27:26,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:27:26,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:27:26,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:27:24" (1/3) ... [2020-07-07 11:27:26,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af4408b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:27:26, skipping insertion in model container [2020-07-07 11:27:26,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:27:25" (2/3) ... [2020-07-07 11:27:26,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af4408b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:27:26, skipping insertion in model container [2020-07-07 11:27:26,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:27:26" (3/3) ... [2020-07-07 11:27:26,546 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label20.c [2020-07-07 11:27:26,557 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:27:26,564 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:27:26,578 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:27:26,602 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:27:26,603 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:27:26,603 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:27:26,603 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:27:26,603 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:27:26,604 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:27:26,604 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:27:26,604 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:27:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-07 11:27:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-07 11:27:26,634 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:27:26,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:27:26,635 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:27:26,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:27:26,641 INFO L82 PathProgramCache]: Analyzing trace with hash 92787543, now seen corresponding path program 1 times [2020-07-07 11:27:26,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:27:26,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383055489] [2020-07-07 11:27:26,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:27:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:27:26,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383055489] [2020-07-07 11:27:26,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:27:26,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:27:26,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336300378] [2020-07-07 11:27:26,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:27:26,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:27:27,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:27:27,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:27:27,004 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-07-07 11:27:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:27:29,245 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-07-07 11:27:29,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:27:29,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-07-07 11:27:29,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:27:29,282 INFO L225 Difference]: With dead ends: 730 [2020-07-07 11:27:29,282 INFO L226 Difference]: Without dead ends: 447 [2020-07-07 11:27:29,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:27:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-07-07 11:27:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-07-07 11:27:29,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-07-07 11:27:29,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-07-07 11:27:29,412 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 34 [2020-07-07 11:27:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:27:29,413 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-07-07 11:27:29,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:27:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-07-07 11:27:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-07 11:27:29,418 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:27:29,419 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:27:29,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:27:29,420 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:27:29,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:27:29,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1040118654, now seen corresponding path program 1 times [2020-07-07 11:27:29,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:27:29,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474900274] [2020-07-07 11:27:29,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:27:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:29,821 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:27:29,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474900274] [2020-07-07 11:27:29,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:27:29,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:27:29,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874079608] [2020-07-07 11:27:29,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:27:29,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:27:29,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:27:29,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:27:29,826 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 9 states. [2020-07-07 11:27:31,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:27:31,988 INFO L93 Difference]: Finished difference Result 1490 states and 2350 transitions. [2020-07-07 11:27:31,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 11:27:31,989 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 116 [2020-07-07 11:27:31,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:27:31,998 INFO L225 Difference]: With dead ends: 1490 [2020-07-07 11:27:31,999 INFO L226 Difference]: Without dead ends: 1055 [2020-07-07 11:27:32,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-07-07 11:27:32,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2020-07-07 11:27:32,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 745. [2020-07-07 11:27:32,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-07-07 11:27:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1066 transitions. [2020-07-07 11:27:32,082 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1066 transitions. Word has length 116 [2020-07-07 11:27:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:27:32,083 INFO L479 AbstractCegarLoop]: Abstraction has 745 states and 1066 transitions. [2020-07-07 11:27:32,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:27:32,083 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1066 transitions. [2020-07-07 11:27:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-07 11:27:32,088 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:27:32,089 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:27:32,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:27:32,089 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:27:32,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:27:32,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1418096050, now seen corresponding path program 1 times [2020-07-07 11:27:32,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:27:32,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856812211] [2020-07-07 11:27:32,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:27:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:27:32,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856812211] [2020-07-07 11:27:32,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:27:32,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:27:32,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339885936] [2020-07-07 11:27:32,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:27:32,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:27:32,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:27:32,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:27:32,424 INFO L87 Difference]: Start difference. First operand 745 states and 1066 transitions. Second operand 9 states. [2020-07-07 11:27:34,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:27:34,026 INFO L93 Difference]: Finished difference Result 1822 states and 2689 transitions. [2020-07-07 11:27:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:27:34,028 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2020-07-07 11:27:34,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:27:34,035 INFO L225 Difference]: With dead ends: 1822 [2020-07-07 11:27:34,036 INFO L226 Difference]: Without dead ends: 1083 [2020-07-07 11:27:34,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:27:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2020-07-07 11:27:34,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1055. [2020-07-07 11:27:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2020-07-07 11:27:34,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1377 transitions. [2020-07-07 11:27:34,074 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1377 transitions. Word has length 156 [2020-07-07 11:27:34,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:27:34,075 INFO L479 AbstractCegarLoop]: Abstraction has 1055 states and 1377 transitions. [2020-07-07 11:27:34,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:27:34,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1377 transitions. [2020-07-07 11:27:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-07-07 11:27:34,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:27:34,080 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:27:34,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 11:27:34,080 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:27:34,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:27:34,081 INFO L82 PathProgramCache]: Analyzing trace with hash 776423077, now seen corresponding path program 1 times [2020-07-07 11:27:34,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:27:34,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353197933] [2020-07-07 11:27:34,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:27:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:27:34,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353197933] [2020-07-07 11:27:34,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901317522] [2020-07-07 11:27:34,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:27:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:34,518 INFO L264 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:27:34,530 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:27:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:27:34,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:27:34,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-07-07 11:27:34,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50891316] [2020-07-07 11:27:34,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:27:34,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:27:34,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:27:34,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:27:34,654 INFO L87 Difference]: Start difference. First operand 1055 states and 1377 transitions. Second operand 11 states. [2020-07-07 11:27:37,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:27:37,798 INFO L93 Difference]: Finished difference Result 3215 states and 4587 transitions. [2020-07-07 11:27:37,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-07 11:27:37,799 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2020-07-07 11:27:37,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:27:37,816 INFO L225 Difference]: With dead ends: 3215 [2020-07-07 11:27:37,816 INFO L226 Difference]: Without dead ends: 2166 [2020-07-07 11:27:37,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-07-07 11:27:37,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2020-07-07 11:27:37,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 1550. [2020-07-07 11:27:37,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1550 states. [2020-07-07 11:27:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 2102 transitions. [2020-07-07 11:27:37,911 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 2102 transitions. Word has length 202 [2020-07-07 11:27:37,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:27:37,912 INFO L479 AbstractCegarLoop]: Abstraction has 1550 states and 2102 transitions. [2020-07-07 11:27:37,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:27:37,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 2102 transitions. [2020-07-07 11:27:37,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-07 11:27:37,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:27:37,918 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:27:38,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:27:38,134 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:27:38,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:27:38,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1499058288, now seen corresponding path program 1 times [2020-07-07 11:27:38,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:27:38,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038176875] [2020-07-07 11:27:38,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:27:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 54 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-07 11:27:38,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038176875] [2020-07-07 11:27:38,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003835585] [2020-07-07 11:27:38,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:27:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:27:38,532 INFO L264 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:27:38,555 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:27:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-07 11:27:38,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:27:38,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-07 11:27:38,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33650471] [2020-07-07 11:27:38,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:27:38,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:27:38,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:27:38,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:27:38,696 INFO L87 Difference]: Start difference. First operand 1550 states and 2102 transitions. Second operand 3 states. [2020-07-07 11:27:39,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:27:39,464 INFO L93 Difference]: Finished difference Result 3092 states and 4199 transitions. [2020-07-07 11:27:39,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:27:39,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-07-07 11:27:39,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:27:39,466 INFO L225 Difference]: With dead ends: 3092 [2020-07-07 11:27:39,466 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:27:39,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:27:39,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:27:39,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:27:39,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:27:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:27:39,477 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 203 [2020-07-07 11:27:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:27:39,478 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:27:39,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:27:39,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:27:39,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:27:39,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:27:39,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:27:40,270 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 31 [2020-07-07 11:27:40,429 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 25 [2020-07-07 11:27:40,598 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 25 [2020-07-07 11:27:40,603 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:27:40,603 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a10~0 |old(~a10~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a19~0 |old(~a19~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-07 11:27:40,604 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:27:40,604 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-07 11:27:40,604 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,604 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,604 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,605 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,605 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,605 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,605 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-07 11:27:40,605 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-07 11:27:40,605 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-07 11:27:40,606 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-07 11:27:40,606 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-07 11:27:40,606 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-07 11:27:40,606 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-07 11:27:40,606 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-07 11:27:40,606 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-07 11:27:40,606 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-07 11:27:40,607 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-07 11:27:40,607 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,607 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,607 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,607 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,607 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,607 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-07 11:27:40,607 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-07 11:27:40,608 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-07 11:27:40,608 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-07 11:27:40,608 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-07 11:27:40,608 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-07 11:27:40,608 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-07 11:27:40,608 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-07 11:27:40,608 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-07 11:27:40,609 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-07 11:27:40,609 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-07 11:27:40,609 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-07 11:27:40,609 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-07 11:27:40,609 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2020-07-07 11:27:40,609 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-07 11:27:40,610 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,610 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,610 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,610 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,610 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,610 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-07 11:27:40,610 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-07 11:27:40,610 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-07 11:27:40,610 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-07 11:27:40,611 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-07 11:27:40,611 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-07 11:27:40,611 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-07 11:27:40,611 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-07 11:27:40,611 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-07 11:27:40,611 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-07 11:27:40,611 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,611 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,612 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,612 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,612 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,612 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-07 11:27:40,612 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-07 11:27:40,612 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-07 11:27:40,612 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-07 11:27:40,612 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-07 11:27:40,613 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-07 11:27:40,613 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-07 11:27:40,613 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-07 11:27:40,613 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-07 11:27:40,613 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-07 11:27:40,613 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-07 11:27:40,613 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-07 11:27:40,613 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-07 11:27:40,614 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,614 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,614 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,614 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,614 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,614 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-07 11:27:40,614 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-07 11:27:40,615 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-07 11:27:40,615 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-07 11:27:40,615 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-07 11:27:40,615 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-07 11:27:40,615 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-07 11:27:40,615 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-07 11:27:40,615 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-07 11:27:40,615 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,616 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,616 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,616 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,616 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,616 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,616 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,616 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-07 11:27:40,616 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-07 11:27:40,616 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-07 11:27:40,617 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-07 11:27:40,618 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,618 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,618 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,618 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,618 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-07 11:27:40,618 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,618 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,618 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-07 11:27:40,618 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-07 11:27:40,619 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-07 11:27:40,620 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-07 11:27:40,620 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,620 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,620 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,620 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,620 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,620 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,620 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-07 11:27:40,620 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-07 11:27:40,621 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-07 11:27:40,621 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-07 11:27:40,621 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-07 11:27:40,621 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-07 11:27:40,621 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-07 11:27:40,621 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-07 11:27:40,621 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-07 11:27:40,622 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-07 11:27:40,622 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-07 11:27:40,622 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (= 7 |old(~a19~0)|)) (.cse0 (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (<= 1 |old(~a10~0)|)) .cse0 (not (<= |old(~a10~0)| 2))) (or (not (<= |old(~a10~0)| 0)) .cse1 .cse0) (or .cse1 (not (<= |old(~a19~0)| 9)) .cse0))) [2020-07-07 11:27:40,622 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-07 11:27:40,622 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-07 11:27:40,622 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-07 11:27:40,623 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,623 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,623 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,623 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,623 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,623 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,623 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-07 11:27:40,624 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-07 11:27:40,624 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-07 11:27:40,624 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-07 11:27:40,624 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-07 11:27:40,624 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-07 11:27:40,624 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-07 11:27:40,624 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-07 11:27:40,624 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-07 11:27:40,625 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-07 11:27:40,625 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-07 11:27:40,625 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-07 11:27:40,625 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-07 11:27:40,625 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,625 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,625 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,625 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,625 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,626 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,626 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-07 11:27:40,626 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-07 11:27:40,626 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-07 11:27:40,626 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-07 11:27:40,626 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-07 11:27:40,626 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-07 11:27:40,626 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-07 11:27:40,626 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-07 11:27:40,627 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-07 11:27:40,627 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-07 11:27:40,627 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-07 11:27:40,627 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-07 11:27:40,627 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,627 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,627 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,627 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,628 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,628 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-07 11:27:40,628 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-07 11:27:40,628 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-07 11:27:40,628 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-07 11:27:40,628 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-07 11:27:40,628 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-07 11:27:40,628 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-07 11:27:40,629 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-07 11:27:40,629 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-07 11:27:40,629 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-07 11:27:40,629 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-07 11:27:40,629 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-07 11:27:40,629 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-07 11:27:40,629 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:27:40,630 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0)) [2020-07-07 11:27:40,630 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:27:40,630 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:27:40,630 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-07 11:27:40,630 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-07 11:27:40,630 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= 7 ~a19~0)))) (or (and (<= ~a19~0 9) .cse0) (and (<= 1 ~a10~0) (<= ~a10~0 2)) (and (<= ~a10~0 0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)))) [2020-07-07 11:27:40,630 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-07 11:27:40,630 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-07 11:27:40,631 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (not (= 7 ~a19~0)))) (or (and (<= ~a19~0 9) .cse0) (and (<= 1 ~a10~0) (<= ~a10~0 2)) (and (<= ~a10~0 0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)))) [2020-07-07 11:27:40,631 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-07 11:27:40,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:27:40 BoogieIcfgContainer [2020-07-07 11:27:40,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:27:40,660 INFO L168 Benchmark]: Toolchain (without parser) took 16136.08 ms. Allocated memory was 138.4 MB in the beginning and 397.4 MB in the end (delta: 259.0 MB). Free memory was 100.3 MB in the beginning and 92.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 266.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:27:40,661 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 11:27:40,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.14 ms. Allocated memory was 138.4 MB in the beginning and 204.5 MB in the end (delta: 66.1 MB). Free memory was 100.1 MB in the beginning and 169.8 MB in the end (delta: -69.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:27:40,665 INFO L168 Benchmark]: Boogie Preprocessor took 108.59 ms. Allocated memory is still 204.5 MB. Free memory was 169.8 MB in the beginning and 164.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:27:40,666 INFO L168 Benchmark]: RCFGBuilder took 1221.05 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 180.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:27:40,670 INFO L168 Benchmark]: TraceAbstraction took 14114.75 ms. Allocated memory was 237.5 MB in the beginning and 397.4 MB in the end (delta: 159.9 MB). Free memory was 180.2 MB in the beginning and 92.5 MB in the end (delta: 87.8 MB). Peak memory consumption was 247.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:27:40,678 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.14 ms. Allocated memory was 138.4 MB in the beginning and 204.5 MB in the end (delta: 66.1 MB). Free memory was 100.1 MB in the beginning and 169.8 MB in the end (delta: -69.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.59 ms. Allocated memory is still 204.5 MB. Free memory was 169.8 MB in the beginning and 164.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1221.05 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 164.9 MB in the beginning and 180.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14114.75 ms. Allocated memory was 237.5 MB in the beginning and 397.4 MB in the end (delta: 159.9 MB). Free memory was 180.2 MB in the beginning and 92.5 MB in the end (delta: 87.8 MB). Peak memory consumption was 247.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 88]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((a19 <= 9 && !(7 == a19)) || (1 <= a10 && a10 <= 2)) || (a10 <= 0 && !(7 == a19))) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 315 SDtfs, 3427 SDslu, 238 SDs, 0 SdLazy, 5177 SolverSat, 1424 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 488 GetRequests, 425 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1550occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 960 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 62 PreInvPairs, 102 NumberOfFragments, 193 HoareAnnotationTreeSize, 62 FomulaSimplifications, 8554 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2088 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1116 NumberOfCodeBlocks, 1116 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1109 ConstructedInterpolants, 0 QuantifiedInterpolants, 596375 SizeOfPredicates, 2 NumberOfNonLiveVariables, 755 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 493/574 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...